This is NCSA Mosaic 2.7, one of the first graphical web browsers. If you're on Ubuntu, Fedora, openSUSE or something like it, your time machine is fueled up and ready to go. Download the AppImage, set the executable bit, and run.
Many thanks to Sean MacLennan and Alan Wylie for doing the heavy lifting. And, of course, hats off to Marc Andreessen, Eric Bina, and the rest of the NCSA team for kicking things off for us. Thanks!